Vehicle braking mechanism



Jan. 22, 1929. 1,700,110

- M. E. ROE

VEHICLE BRAKING MECHANISM Filed Dec. 1'7, 1924 '2 Sheets-Sheet 1 4 z pINVENTOR" BZK -Ao I AnoZNEY.

Jan. 22, 1929.

M. E. ROE

,VEHICLE BRAKING MECHANISM Filed Dec. 1-7. 1924 2 Sheets-Shet 2 INVENTOR7M0 i 1% I BY mm; 'ATT RNEY Patented Jan. 22, 1929.

UNITED, STATES MAYO E. ROE, OF ELYRIA, QHIO, ASSIGNOR TO THE COLSONCOMPANY, OF

OHIO, A CORPORATION OF OHIO.

PATENT OFFICE.

ELYRIA,

VEHICLE BRAKING MECHANISM.

Application filed December 17, 1924. Serial No. 756,503.

This invention relates to vehicle braking mechanisms and moreparticularly to a vehicle braking mechanism applicable for use on thattype of vehicles now commonly known 6 as scooters.

vide such a brake mechanism which will be efficient in operation,durable in use and at the same time so designed that the manufacturingcost of the same will be relatively loW.

Another object of my invention is to provide a brake mechanismapplicable for use in a scooter, and in which there may also be combinedthe function of a stand for the vehicle.

Another object of my invention is to provide an improved combined brakeand stand for two-wheeled vehicles which will have two operativepositions and a normal inoperative position, one of the operativepositions being that in which a brake is applied to the vehicle, and theother operative position being that in which the mechanism is used as astand to support the wheel when it is not in use.

Other objects of my invention will be come apparent as the descriptionof an embodiment thereof progresses and in which description referencewill be had to the accompanying specification and the accom: panyingdrawings referred to therein.

Referring to the drawings- Fig. 1 shows a perspective side elevationv ofa scooter comprising an embodiment of my invention;

Fig. 2 shows a plan view of the said embodiment, a fragment of thescooter of Fig. 1 being shown in connection therewith;

Fig. 3 shows a side elevation of the apparatus of Fig. 2, a portion ofthe apparatus being also indicated in the two operative positions itassumes in practice, such positions being indicated by dotted lines;

Fig. 4 shows a section taken on the line 4-4 of Fig. 2;

Fig. 5 shows a section taken on the line 5-5 of Fig. 8, this figure andthe foregoing figure being illustrative of the brake shoe and associatedparts. r

Referring now to all of the figures in which like parts are designatedby like reference characters, at 1, I show'a foot board for atwo-wheeled scooter of a Well known type carried on frame members 3 and4 which are joined at 5 to a steering knuckle 6 rotatably secured in asteering column 7 having handles 8 and terminatingat its lower end in afork 9. The fork 9 carries at its lower end a rotatable front wheel 10which is dirigible by means of the handles 8. The frame members 3 and 4extend rearwardly to a rear wheel 11 carried between the ends of the twoframe members 3 and 4, the wheel 11 being freely rotatable, on an axle16 secured in the ends 13 and 14 of the frame side members 3 and 4.

As is well-known, such a scooter vehicle as so far described ispropelled by the rider resting one foot on the foot board 1 and holdingthe handles 8 and thrusting the other foot rearwardly on the ground toshove the vehicle ahead, the weight of the riders body being carried onthe foot board and at intervals the rider may rest his entire weight onthe foot. board placing both feet thereon to quickly prevent rotation ofthe rear wheel 11 by bringing into engagement with the tire 42 thereof abrake shoe 21. This is accomplished through the medium of theinstrumentalities which I will now describe.

At 15, on either side of the wheel 11, I provide securing nuts for theend of the axle l6 and which clamp to the stationary portion of suchaxle the side frame members 3 and 4 at their ends 13 and 14, which areperforated and which are passed over the ends of the stationary axleshaft. shown at 16. At 17 I provide a supporting bracket perforated toadmit the end of the axle shaft 16 and having bent over ears or lugs 18resting against the top and bottom edges of the side frame members. Twocomplementary bracketsv 17 are provided one for each side of the vehicleand in like manner the are clamped by the nuts together with the sideframe members to the stationary axle 16. The flanges 18 prevent rotationof the braclrets about the axle shaft 16. At 19, 1 provide anapproximately U-shap'ed element or lever pivotally secured by bolts 20to the brackets 17, the bolts 20 passing through a hinge perforation inthe ones of the brackets and the U-shaped member, and the openingthrough the member ends being larger, somewhat, than the diameter ofbolts or rivets 20 which passes through the same. 7 a

At 21 I show a friction brake shoe of sheet steel carried by theintermediate portion 22 of the so-called U-shaped member 19 beingsecured thereto by a pair of studs 23 rigidly mounted at 241 on themid-part 22 of the said member as by riveting them thereon, the rivetheads being shown at 25. A pair of springs 26 are interposed between anend flange 27 and the surface 28 of the brake shoe 21, the brake shoe 21being perforated as shown at 29 and the stems of the studs 23 passingthrough such perforation prior to the rivet ing operation whereby therivet heads are formed. The springs 26 press the brake shoes 21 againstthe inner side of the intermediate portion 22 of the U-shaped member,and normally maintains the bralre shoe in such position relative to theside arms 30 and 31 of the U-shaped member that the sides of the brakeshoe will rest as shown at 32 upon the side frame members 3 and 4: andmaintain the central or intermediate or braking surface portion 33 ofthe brake shoe 21 out of contact with the vehicle tire 12, Fig. 3.

Referring more particularly to Figs. 3 and 1, it will be seen that thebrake shoe 21 is so formed as to have forwardly extending side'portions35 and 36 depending downwardly from the supporting portion 22 of theU-shaped member and a more downwardly extending intermediate portion 33,the clownwardly extending intermediate portion being rearwardly indentedand presenting a braking surface toward the opposing portion of thevehicle wheel tire which is substantially parallel thereto, but removedtherefrom, when the apparatus is in the normal position as shown in Fig.3, sufficiently that there will be no engagement between any portion ofthe brake shoe 21 and the tire. The forwardly extending side portions 32in such position of the parts will rest upon the side frame members asshown at 32, the forward edges 37 and 38 of the brake shoe side portionsmaking contact therewith. he spring 26 will normally resist any changeof position of the brake shoes relative to the side frame members andthe side arms of the U-shaped member, resiliently until a strong enoughforce is applied to distort the sprin 26. However, when the vehicle isin use and it is desired to apply the brake, this is accomplished by theoperator pressing his foot against any portion of the member 19forwardly of the pivots 20, at which time the pressure exerteddownwardly will cause the brake shoe 21 to bring its braking surface 33into intimate contact with the periphery 3 1 of the vehicle wheel tire12, since such downward pressure will cause by camming action, amovement of the point 32 at edges 37 and 38 of the brake shoe 21 to bemoved rearwardly, the brake shoe 21 rotating rearwardly on the stud 23against the power of the compression spring 26 which normally preventssuch rotation. Whenever the operator wishes to discontinue the brakingeffort he removes his foot from the U-shaped brake lever 19 at whichtime the springs 26 tending to regain their less stressed form as shownin Fig. 41, will retract the brake shoe 21 to its normal non-brakingposition as shown in solid lines in Fi 3, the braking position of thebrake lever and shoe being shown closely adjacentthereto, but withdotted lines. 7

Whenever it is desired that the apparatus be employed to perform thefunction of a stand to support the vehicle, the U-shaped member 19 isrotated on its supporting pivots 20 upwardly, rearwardly and downwardlyuntil it takes the position shown with dotted lines at 39 at which timethe end 10 of the U-shaped member 19 comprising the intermediate portion22 will rest'upon the ground, the protruding portions 11 and 42 adjacentthe extreme sides of such intermediate portion 22 making first contactwith the ground. Pivot 20 is located so that the stand is rotatedslightly beyond Vertical position, and bears against the nut 15 toprevent further rotation. The middle of the intermediate portion 22between the protruding portions 11 and 412 is recessed from suchportions so as to give the vehicle, generally, especially when used upona hard surface, the so-called threepoint contact with the supportingsurface, one of the points being the front wheel and the other twopoints being the protruding portions l1 and 412 of the U-shaped stand19.

Whereas I have called the U-shaped member 19- at various times a brakelever, a stand or U-shaped member, it will be understood that I refer tothe same element and employ the different terms to denote at differenttimes the changing functions thereof.

Having thus described my invention in a particular embodiment, I amaware that m invention may be employed in structures differing widelytherefrom, but comprehended within my invent-ion. I therefore claim 1.In a braking mechanism for two-wheeled vehicles, the combination withthe vehicle frame of a brake lever pivoted thereto at a side of the rearwheel of the vehicle and carrying a brake shoe normally disposedadjalflb cent the tire thereof but spaced therefrom, spring meansfornormally mamtammg the brake shoe out of contact with'the said tire,

a portion of the-said lever being adapted to be engaged and thrustdownwardly by the foot of the riderto overcome said spring means and tocause said brake shoe to frictionally engage the vehicle wheel tire,said lever being rotatable about its pivots from said normal and brakingpositions to carry its free end about the tire of the vehicle to aposition of engagement with the ground or other surface upon which thevehicle rests, said ground engaging lever portions extending to eitherside of the vehicle to comprise with the vehicle front wheel, asubstantially triangular support.

2. In a braking mechanism for two-Wheeled vehicles, the combination withthe vehicle frame of a brake lever pivoted thereto at a side of the rearwheel of the vehicle and -car rying a brake shoe normally disposed adjacent the tire thereof, spring means for normally maintaining the brakeshoe out of contact with the said tire, a portion of the said leverbeing adapted to be engaged and thrust downwardly by the foot of therider to overcome said spring means and to cause said brake shoe tofrictionally enga e the vehicle wheel tire, said lever beingapproximately U- shaped and carrying the said brake shoe at itsintermediate portion, said lever being rotatable about its pivots fromsaid normal and braking positions to carry its free end about the tireof the vehicle to a position of en gagement with the ground or othersurface upon which the vehicle rests, said ground engaging leverport-ions extending to either side of the' vehicle to comprise with thevehicle front wheel, a. substantially triangular support.

In a two-wheeled vehicle of the scooter type, the combination with thetwo wheels of the vehicle, of a substantially horizontal frame joiningthe wheels and supported thereby, of a platform carried thereby, a brakeshoe, a lever fulcrumed to the frame with a free end extended above thelevel of said platform and at the rear thereof, said lever rotatingabout said fulcrum when its free end is depressed to move said brakeshoe into contact with a wheel tire, said lever being movable to take avehicle supporting position wherein it will support an end of thevehicle with the adjacent wheel lifted out of contact with the vehiclesupporting surface.

at In a two-wheeled vehicle of the scooter of, said leverrotating aboutsaid fulcrum when its free end is depressed to move said brake shoe intocontact with a wheel tire, said lever being movable to take avehicle'snp, porting position wherein it will support an end of thevehicle with the adjacent wheel lifted out of contact with the vehiclesupporting surface, said shoe having a vehicle frame contacting portionto guide it into proper contacting wheel tire.

5. In a two-wheeled vehicle of the scooter type, the combination withthe two wheels of the vehicle of a substantially horizontal framejoining the wheels and supported thereby, of a platform carried thereby,a brake shoe, a lever fulcrumed to the frame with a free end extendedabove the level of said platform and at the rear thereof, said leverrotating about said fulcrum when its free end is depressed to move saidbrake shoe into contact with a wheel tire, said lever being movable totake a vehicle supporting position wherein it will support an end of thevehicle with the adjacent wheel lifted out of contact with the vehiclesupporting surface, said shoe having a vehicle frame contacting portionto guide it into proper contacting engagement with the wheel tire, saidshoe contacting portion normally engaging the frame, said lever beingsubstantially U-shaped with its fulcrum at the ends thereof.

6. A toy of the character set forth the combination of a Wheeled frame,a platform thereon, a supporting rack pivoted on the frame adjacent theaxle of one Wheel, and a engagement with the Hill yieldable shieldcarried by the rack in close proximity to the periphery of the wheel.

7. A toy of the character set forth the com binat-ion of a wheeledframe, a platform thereon, a supporting rack pivoted on the frameadjacent the axle of one wheel, and a shield yieldably connected to therack and disposed in close proximity to the periphery of the Wheel.

8. In a device of the class described, the combination with a supportingframe, of a rear wheel journaled thereon, a lever in the form of a loopstriding said wheel and pivotally secured at its rear portion to therear portion of said frame, a brake element operable by said lever toengage the peripheral portion of the wheel, and a spring associated withsaid lever adapted to normally retract it from brake operating position.I

9. The combination with a scooter having a rear Wheel, of a combinedfender and brake for said wheel, and an operating member for applyingthe brake, said operating member being mounted for downward movementinto engagement with the ground to form a stand for the scooter.

10. In a vehicle of the class described, a frame having a platform uponwhich an opheel engageable position, and a member operable by rotationof the lever for braking engagement With the rear wheel.

In testimony whereof I hereunto aflix my signature this 11th day ofDecember, 1924.

MAYO E. ROE.

